The package you are on is a BT Wholesale based one. The unlimited one I guessed is LLU. Scrolling down this page
confirms it. It explains LLU and what they offer if you can't get that.
Almost certainly provided via TalkTalk Business Wholesale, which in contrast to TalkTalk Retail appears to be fairly good. Is TalkTalk available to you?
Watch out for it being full LLU (MPF). That moves your phone line to TT as well instead of being a "BT" line. That may or may not bother you. Shared LLU (SMPF) leaves the line on "BT".
Kindness isn't going to cure the world of all its awfulness but it's a good place to begin. Daisy Ridley.
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